Adobe Core Workflow A — Firefly Services

Overview

Primary creative workflow using Adobe Firefly v3 APIs: text-to-image generation, generative fill (inpainting), and image expansion (outpainting). These are the most common Firefly Services operations for marketing asset automation.

Prerequisites

• Completed adobe-install-auth with Firefly API scopes (firefly_api,ff_apis)
• @adobe/firefly-apis installed, or direct REST access
• Pre-signed cloud storage URLs for input/output images (S3, Azure Blob, or Dropbox)

Instructions

Step 1: Text-to-Image Generation (Synchronous)

// src/workflows/firefly-generate.ts
import { getAccessToken } from '../adobe/client';

interface FireflyGenerateOptions {
  prompt: string;
  negativePrompt?: string;
  width?: number;    // 1024, 1472, 1792, 2048
  height?: number;
  n?: number;        // 1-4 images
  contentClass?: 'art' | 'photo';
  style?: {
    presets?: string[];  // e.g., ['digital_art', 'cinematic']
    strength?: number;   // 0-100
  };
}

interface FireflyOutput {
  outputs: Array<{
    image: { url: string };
    seed: number;
  }>;
}

export async function generateImage(opts: FireflyGenerateOptions): Promise<FireflyOutput> {
  const token = await getAccessToken();

  const body: Record<string, any> = {
    prompt: opts.prompt,
    n: opts.n || 1,
    size: { width: opts.width || 1024, height: opts.height || 1024 },
    contentClass: opts.contentClass || 'photo',
  };

  if (opts.negativePrompt) body.negativePrompt = opts.negativePrompt;
  if (opts.style?.presets) {
    body.styles = { presets: opts.style.presets };
  }

  const response = await fetch('https://firefly-api.adobe.io/v3/images/generate', {
    method: 'POST',
    headers: {
      'Authorization': `Bearer ${token}`,
      'x-api-key': process.env.ADOBE_CLIENT_ID!,
      'Content-Type': 'application/json',
    },
    body: JSON.stringify(body),
  });

  if (!response.ok) {
    const err = await response.text();
    throw new Error(`Firefly generate failed (${response.status}): ${err}`);
  }

  return response.json();
}

Step 2: Async Generation (for High Volume)

// For production pipelines, use async endpoint to avoid HTTP timeouts
export async function generateImageAsync(opts: FireflyGenerateOptions) {
  const token = await getAccessToken();

  const response = await fetch('https://firefly-api.adobe.io/v3/images/generate-async', {
    method: 'POST',
    headers: {
      'Authorization': `Bearer ${token}`,
      'x-api-key': process.env.ADOBE_CLIENT_ID!,
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({
      prompt: opts.prompt,
      n: opts.n || 1,
      size: { width: opts.width || 1024, height: opts.height || 1024 },
    }),
  });

  const { jobId, statusUrl, cancelUrl } = await response.json();
  console.log(`Firefly async job: ${jobId}`);

  // Poll for completion
  let result: any;
  while (true) {
    await new Promise(r => setTimeout(r, 2000));
    const poll = await fetch(statusUrl, {
      headers: {
        'Authorization': `Bearer ${token}`,
        'x-api-key': process.env.ADOBE_CLIENT_ID!,
      },
    });
    result = await poll.json();
    if (result.status === 'succeeded' || result.status === 'failed') break;
  }

  if (result.status === 'failed') throw new Error(`Async generation failed: ${result.error}`);
  return result;
}

Step 3: Generative Fill (Inpainting)

// Fill a masked region of an image with AI-generated content
export async function generativeFill(
  imageUrl: string,
  maskUrl: string,
  prompt: string
): Promise<FireflyOutput> {
  const token = await getAccessToken();

  const response = await fetch('https://firefly-api.adobe.io/v3/images/fill', {
    method: 'POST',
    headers: {
      'Authorization': `Bearer ${token}`,
      'x-api-key': process.env.ADOBE_CLIENT_ID!,
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({
      image: { source: { url: imageUrl } },
      mask: { source: { url: maskUrl } },
      prompt,
      n: 1,
    }),
  });

  if (!response.ok) throw new Error(`Fill failed: ${response.status}`);
  return response.json();
}

Step 4: Image Expansion (Outpainting)

// Expand an image to a larger canvas size with AI-generated surroundings
export async function expandImage(
  imageUrl: string,
  targetWidth: number,
  targetHeight: number,
  prompt?: string
): Promise<FireflyOutput> {
  const token = await getAccessToken();

  const response = await fetch('https://firefly-api.adobe.io/v3/images/expand', {
    method: 'POST',
    headers: {
      'Authorization': `Bearer ${token}`,
      'x-api-key': process.env.ADOBE_CLIENT_ID!,
      'Content-Type': 'application/json',
    },
    body: JSON.stringify({
      image: { source: { url: imageUrl } },
      size: { width: targetWidth, height: targetHeight },
      ...(prompt && { prompt }),
      n: 1,
    }),
  });

  if (!response.ok) throw new Error(`Expand failed: ${response.status}`);
  return response.json();
}

Output

• AI-generated images from text prompts (sync or async)
• Inpainted regions via generative fill with mask
• Expanded/outpainted images to larger canvas sizes
• Temporary URLs for generated images (download within 24h)

Error Handling

Error	Cause	Solution
400 prompt rejected	Content policy violation	Remove trademarks, real people, or explicit content from prompt
403 Forbidden	Missing firefly_api scope	Add Firefly API to Developer Console project
413 Payload Too Large	Image too large for fill/expand	Resize input to max 4096x4096
429 Too Many Requests	Rate limited	Use async endpoint; honor Retry-After header
500 Internal Server Error	Transient Firefly error	Retry with backoff; check status.adobe.com

Resources

• Firefly API Reference
• Firefly Generate Image Tutorial
• Using Async APIs

Next Steps

For PDF document workflows, see adobe-core-workflow-b.